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XPath 1.0 became a Recommendation on 16 November 1999 and is widely implemented and used, either on its own (called via an API from languages such as Java, C#, Python or JavaScript), or embedded in languages such as XSLT, XProc, XML Schema or XForms.
Efficient XML Interchange (EXI) W3C: XML, Efficient XML Yes Efficient XML Interchange (EXI) Format 1.0: Yes XML: XPointer, XPath: XML Schema: DOM, SAX, StAX, XQuery, XPath — Extensible Data Notation (edn) Rich Hickey / Clojure community Clojure: Yes Official edn spec: No Yes No No Clojure, Ruby, Go, C++, Javascript, Java, CLR, ObjC, Python [3 ...
XOXO: an XML microformat for publishing outlines, lists, and blogrolls on the Web; XPDL: interchange Business Process definitions between different workflow products; XPath (or XPath 1.0): an expression language for addressing portions of an XML document; XPath 2.0: a language for addressing portions of XML documents, successor of XPath 1.0
XPath (XML Path Language), a non-XML language for addressing the components (elements, attributes, and so on) of an XML document. XPath is widely used in other core-XML specifications and in programming libraries for accessing XML-encoded data. XQuery (XML Query) is an XML
XPath 2.0 is a version of the XPath language defined by the World Wide Web Consortium, W3C. It became a recommendation on 23 January 2007. [1] As a W3C Recommendation it was superseded by XPath 3.0 on 10 April 2014. XPath is used primarily for selecting parts of an XML document. For this purpose the XML document is modelled as a tree of nodes.
Here the XPath //book is evaluated to create a sequence (aka list); the where clause is a functional "filter", the order by sorts the result, and the <shortBook>...</shortBook> XML snippet is actually an anonymous function that builds/transforms XML for each element in the sequence using the 'map' approach found in other functional languages.
XPath 3 is the latest version of the XML Path Language, a query language for selecting nodes in XML documents. It supersedes XPath 1.0 and XPath 2.0 . XPath 3.0 became a W3C Recommendation on 8 April 2014, while XPath 3.1 became a W3C Recommendation on 21 March 2017.
XPath, the XML Path Language, is a query language for selecting nodes from an XML document. XPath defines a syntax named XPath expressions that can query an XML document for one or more internal components (elements, attributes, etc.). XPath is widely used in other core-XML specifications and in programming libraries for accessing XML-encoded ...